TWI674354B - Damping device - Google Patents

Abstract

A buffer device includes a housing, a piston, a base, a ring member, a piston rod, and a seal. The housing includes a containing chamber filled with a cushioning medium; the piston is arranged in the containing chamber of the housing; the piston has a first side and a second side; and the base is installed on the first side of the piston. One side; the ring is arranged between the piston and the base; the piston rod is connected to the second side of the piston; the seal is installed on the piston rod.

Description

Cushioning device

The invention relates to a buffering mechanism, in particular to a buffering device capable of providing a buffering effect for furniture components.

Generally speaking, some specific furniture, such as doors or cabinets, will be equipped with buffer devices. The buffering device can be used to provide a buffering function when a first member is opened to closed with respect to a second member to slow down the force when the first member is closed with respect to the second member. For example, US Patent Publication No. 10,145,162B2 has disclosed a cushioning device that can be used for furniture hinges. The case discloses that a cover assembly includes a cover, a kit and a sealing ring. The cover covers the opening of the casing, and the sealing ring is sleeved on the cover to seal the opening of the casing. On the other hand, the kit is used to be sleeved on the periphery of the piston rod, and also has a sealing effect. Further, the housing of the buffer device has a sealing effect through the cover assembly.

However, with different market demands, if a different product can be developed, it will certainly bring more choices to the market.

The invention relates to a buffering device capable of providing a buffering effect.

According to an aspect of the present invention, a cushioning device includes a shell A body, a piston, a base, a ring, a piston rod and a seal. The housing includes a containing chamber filled with a cushioning medium; the piston is arranged in the containing chamber of the housing; the piston has a first side and a second side; and the base is installed on the first side of the piston. One side; the ring is arranged between the piston and the base; the piston rod is connected to the second side of the piston; the seal is installed on the piston rod.

Preferably, the buffer device further includes a cover body mounted on the casing.

Preferably, the piston rod passes through the cover and partially protrudes out of the container.

Preferably, the seal is located between the second side of the piston and the cover.

Preferably, the seal is movably mounted on the piston rod.

Preferably, the seal has a flange substantially adjacent to the inner wall of the receiving chamber of the housing.

Preferably, the buffering device further comprises a partition arranged in the containing chamber of the housing, and the partition is located between the second side of the piston and the seal.

Preferably, the buffer device further includes a flexible member for providing a flexible force to the sealing member.

Preferably, the inner wall of the receiving chamber of the housing has a groove, and when the housing and the piston are relatively displaced, the buffering medium can be used in the groove to The chamber flows.

Preferably, the ring is made of a flexible material.

Preferably, the buffer vehicle comprises a fluid.

Preferably, the arrangement direction of the groove is the same as the direction of relative displacement between the housing and the piston.

Preferably, the buffer device further includes an elastic member to provide elastic force between the housing and the piston.

Preferably, the elastic member is disposed in a container of the casing, and the base is abutted against the elastic member.

Preferably, the casing further includes an opening communicating with the accommodating chamber, and the cover is disposed at the opening adjacent to the casing.

Preferably, the piston and the piston rod are integrated together.

According to another aspect of the present invention, a buffer device is suitable for a furniture hinge, the furniture hinge includes a first member and a second member, wherein the second member is pivotally connected to the first member, and the buffer device is mounted on the One of the first member and the second member, the buffer device includes a housing, a cover, a piston, a base, a ring member, a piston rod, and a seal member. The housing includes a containing chamber and an opening filled with a buffer medium; the cover is installed in the housing to close the opening of the housing; the piston is arranged in the containing chamber of the housing; The piston has a first side and a second side; the base is mounted on the first side of the piston; the ring is arranged between the piston and the base; the piston rod is connected to the second side of the piston and penetrates Partially extended through the cover The container room; the seal is movably mounted on the piston rod.

20‧‧‧ buffer device

22‧‧‧shell

24‧‧‧ Cover

26‧‧‧ Pistons

26a‧‧‧Part I

26b‧‧‧Part II

26c‧‧‧Part III

28‧‧‧ base

30‧‧‧Ring

32‧‧‧Piston rod

34‧‧‧seals

36‧‧‧ divider

38‧‧‧flexible

40‧‧‧elastic

42‧‧‧Capacity Room

43‧‧‧ flange

44‧‧‧ opening

45‧‧‧Mounting Department

46‧‧‧ buffer media

48‧‧‧ groove

50‧‧‧ clearance

52‧‧‧Furniture hinge

54‧‧‧The first component

56‧‧‧Second component

58‧‧‧Third component

A1‧‧‧ District 1

A2‧‧‧Second District

C‧‧‧ closing direction

D1‧‧‧ first direction

H‧‧‧perforation

W‧‧‧Inner wall

S1‧‧‧First side

S2‧‧‧Second side

FIG. 1 shows a combined schematic view of a buffer device according to an embodiment of the present invention; FIG. 2 shows a half-section schematic view of a buffer device according to an embodiment of the present invention; FIG. 3 shows an exploded schematic view of a buffer device according to an embodiment of the present invention; Assembly diagram of a buffer device according to an embodiment of the present invention; FIG. 5 shows a schematic diagram of relative displacement between a housing and a piston of the buffer device according to an embodiment of the present invention; FIG. 6 shows an enlarged schematic view of the area A in FIG. Relationship with a gap; FIG. 7 shows a schematic diagram of the relative displacement between the housing and the piston of the buffer device according to an embodiment of the present invention; FIG. 8 shows an enlarged schematic view of the area A in FIG. The gap; and FIG. 9 shows a schematic perspective view of a buffer device suitable for a furniture hinge according to an embodiment of the present invention.

It is expected that the structure, features, effects, and purpose of the present invention can be understood in more detail. The related embodiments of the present invention are described in detail below with reference to the drawings.

As shown in FIGS. 1 to 3, a buffer device 20 according to an embodiment of the present invention includes a housing 22, a cover 24, a piston 26, a base 28, a ring member 30, a piston rod 32, and a seal member. 34. Preferably, it further includes a partition 36, a flexible member 38 and an elastic member 40. Here, the flexible member 38 and the elastic member 40 respectively take a first spring and a second spring as examples, but the implementation is not limited.

The casing 22 includes a receiving chamber 42 and an opening 44. The opening 44 communicates with the receiving chamber 42.

The cover 24 is mounted on the casing 22 to close the opening 44 of the casing 22.

The piston 26 is arranged in the receiving chamber 42 of the housing 22, and the piston 26 has a first side S1 and a second side S2. Preferably, the first side S1 and the second side S2 are opposite sides. Specifically, the piston 26 has a first portion 26a and a second portion 26b. Preferably, a third portion 26c is further included. The first portion 26a is located between the second portion 26b and the third portion 26c. Further, the second portion 26b is close to the first side S1, and the third portion 26c is close to the second side S2. Preferably, the size of the third portion 26c is larger than the size of the first portion 26a, and the size of the first portion 26a is larger than the size of the second portion 26b. In other words, the outline of the third portion 26c is larger than the outline of the first portion 26a, and the outline of the first portion 26a is larger than the outline of the second portion 26b.

The base 28 is mounted on the first side S1 of the piston 26. For example, the base 28 is mounted on the second portion 26 b of the piston 26. Preferably, the base 28 can be connected to the second portion 26b of the piston 26 by means of plugging, screwing, or snapping, and therefore, the implementation is not limited.

The ring member 30 is arranged between the piston 26 and the base 28. For example, the ring member 30 is located in a space defined between the third portion 26 c of the piston 26 and the base 28. Preferably, the ring member 30 is made of a flexible material.

The piston rod 32 is connected to the second side S2 of the piston 26. For example, this The piston rod 32 is connected to the third portion 26c of the piston 26 and extends a predetermined length from the third portion 26c. Preferably, the piston rod 32 passes through the cover 24 and partially protrudes out of the accommodating chamber 42. Preferably, the piston rod 32 and the piston 26 are integrated together, and the piston rod 32 and the piston 26 include a metal material, which helps to improve the structural strength. Alternatively, the piston 26 may include a non-metallic material.

The seal 34 is mounted on the piston rod 32. For example, the seal 34 is located in another space defined between the second side S2 of the piston 26 and the cover 24. Preferably, the seal 34 is movably mounted on the piston rod 32. Here, the sealing member 34 is sleeved on a part of the periphery of the piston rod 32, and the sealing member 34 can move along the length direction of the piston rod 32 as an example. In addition, the seal 34 has a flange 43, and the flange 43 is substantially close to the inner wall of the receiving chamber 42 of the housing 22. Therefore, the seal 34 may have both a seal shaft (for example, the seal 34 is sleeved on a partial periphery of the piston rod 32) and a seal (for example, the flange 43 of the seal 34 is substantially close to the housing). 22 (the inner wall of the receiving chamber 42) to help the sealing efficiency of the interior of the casing 22.

The partition 36 is arranged in the receiving chamber 42 of the housing 22, and the partition 36 is located between the second side S2 of the piston 26 and the seal 34. Preferably, the receiving chamber 42 of the housing 22 has a mounting portion 45 therein, and the partition 36 is fixed on the mounting portion 45. The mounting portion 45 is, for example, a recessed portion for the spacer 36 to lean against. Preferably, the partition 36 is a gasket, and the partition 36 has a perforation H.

The flexible member 38 is used to provide a flexible force to the seal 34 so that the The sealing member 34 can be held in a predetermined position, for example, the sealing member 34 can abut against the partition 36. The flexible member 38 is installed between the sealing member 34 and the cover 24.

The elastic member 40 is used to provide elastic force between the casing 22 and the piston 26. Wherein, the piston 26 can respond to the elastic force of the elastic member 40 to allow the piston rod 32 to partially protrude out of the accommodation chamber 42, so that the buffer device 20 is in a buffer ready state. Further, the elastic member 40 is disposed in the receiving chamber 42 of the housing 22, and the piston 26 abuts against the elastic member 40 through the base 28.

As shown in FIG. 4, the buffer device 20 is in the buffer ready state. The buffer chamber 46 may be filled in the containing chamber 42 of the casing 22 (in FIG. 4 to FIG. 8, the buffer medium 46 is represented by a plurality of black dots). The buffer medium 46 contains a fluid, such as an oil or a liquid. Preferably, the inner wall W of the receiving chamber 42 of the casing 22 has a groove 48. Here, the groove 48 is disposed along the longitudinal direction of the casing 22. Alternatively, it can be said that the arrangement direction of the groove 48 is the same as the direction in which the housing 22 and the piston 26 are relatively displaced. For example, the arrangement direction of the groove 48 is longitudinal, and the direction in which the housing 22 and the piston 26 are relatively displaced is also longitudinal. In addition, although the trench 42 is a long trench as an example, the shape of the trench 42 is not limited thereto.

As shown in FIGS. 4 and 5, the housing 22 and the piston 26 can be relatively displaced. For example, when the piston rod 32 is fixed (for example, when the piston rod 32 abuts against an object), and a force is applied to the housing 22 in a first direction D1, the housing 22 faces the first direction D1. Displacement so that the housing 22 and the piston 26 Relative displacement; or when the housing 22 is fixed (for example, the housing 22 abuts against an object), and a force is applied to the piston rod 32 in a second direction (the direction opposite to the first direction D1) The piston rod 32 is displaced in the second direction, so that the housing 22 and the piston 26 can be relatively displaced.

In this embodiment, when the piston rod 32 is fixed as an example, and the housing 22 responds to the force and moves in the first direction D1 relative to the piston 26, the elastic member 40 responds to the displacement of the housing 22 and An elastic force can be accumulated, and a part of the buffer medium 46 is squeezed to flow through the groove 48 in the direction of the opening 44. Specifically, with the piston 26 (or the partition 36) as a boundary, the buffer medium 46 can form a flow path through the groove 48 to flow from a first area A1 of the container 42 to the container 42. A second region A2 to produce a buffering effect. It can be seen that the buffering medium 46 can flow in the accommodating chamber 42 through the groove 48.

Further, when the buffer medium 46 flows from the first area A1 to the second area A2 of the containing chamber 42, a thrust is generated. Specifically, at least a part of the buffering medium 46 can sequentially reach the second region A2 from the first region A1 along the groove 48 and the perforation H of the partition 36. Wherein, if the thrust force is greater than the flexibility force of the flexible member 38, the thrust force can push the seal member 34 to move relative to the piston rod 32 (for example, push the seal member 34 to the first direction D1), so that the flexible member The sex piece 38 gradually accumulates a flexible force. The pressure of the first region A1 and the second region A2 can be appropriately adjusted through the displacement of the seal 34.

As shown in FIG. 6, when the buffer medium 46 flows from the first area A1 to the second area A2 of the chamber 42, the ring member 30 is gradually brought closer to other flows of the buffer medium 46 through the thrust. The path, for example, the ring member 30 gradually approaches a gap 50 between the piston 26 and the inner wall W.

As shown in FIG. 7 and FIG. 8, when the force is continuously applied to the casing 22 in the first direction D1, the elastic member 40 further responds to the displacement of the casing 22 to continue to accumulate the elastic force, and the cushioning medium 46 further flows through the groove 48 from the first region A1 to the second region A2 of the containing chamber 42 to continuously generate a buffering effect.

Further, when the buffer medium 46 flows from the first area A1 to the second area A2 of the chamber 42, the ring member 30 can be used to plug other flows of the buffer medium 46 through the thrust. The path, for example, the ring member 30 can be used to plug the gap 50 between the piston 26 and the inner wall W (as shown in FIG. 8), so that the cushioning medium 46 can only rely on the groove 48 as much as possible. Flow from the first area A1 of the accommodating chamber 42 toward the second area A2. More specifically, since the ring member 30 is made of a flexible material, the ring member 30 can abut against the third portion 26c of the piston 26 due to the thrust (pushing force) of the cushioning medium 43 and It is slightly expanded and deformed, so that it can be used to plug the gap 50 between the piston 26 and the inner wall W, so that the cushioning device 20 can provide a cushioning resistance that instantly increases.

In addition, when the buffer medium 46 further flows from the first area A1 to the second area A2 of the containing chamber 42, the thrust force can further push the seal 34 to move relative to the piston rod 32 (for example, push the seal 34 further Displacement in the first direction D1) causes the flexible member 38 to further accumulate the flexible force. Wherein, through the further displacement of the sealing member 34, the pressure in the first region A1 and the second region A2 can be adjusted.

It is worth mentioning that when the above-mentioned force in the first direction D1 is released, the casing 22 can be displaced in a second direction in response to the elastic member 40 releasing the elastic force, so that the buffer device 20 is restored to the above-mentioned buffer preparation state (As shown in Figure 4). The second direction is opposite to the first direction D1. Specifically, during the displacement of the housing 22 in the second direction, the buffer medium 46 may also return through the passage between the base 28 and the ring member 30. In addition, the flexible member 38 also releases the flexible force to be applied to the seal 34, so that the seal 34 is held in the predetermined position in response to the flexible force.

As shown in FIG. 9, the buffer device 20 can be applied to a furniture hinge 52. The furniture hinge 52 includes a first member 54 and a second member 56 pivotally connected to the first member 54. Preferably, the furniture hinge 52 further includes at least one auxiliary elastic member (not shown) for providing the first member 54 with a force from opening to closing relative to the second member 56 (since this part is in the field) (Technical categories that are usually understood by a knowledgeable person, for the sake of brevity, I will not repeat them here). The first member 54 can be mounted to a first piece of furniture (such as a door); on the other hand, the second member 56 can be mounted to a second piece of furniture (such as a cabinet) through a third member 58.

The buffer device 20 is mounted on one of the first member 54 and the second member 56. Preferably, the first member 54 is a hinge cup, the second member 56 is a hinge arm, and the buffer device 20 is installed in the hinge cup. its In the process of closing the first member 54 from the opening to a closing direction C relative to the second member 56 (for example, the last stroke), the piston rod 32 of the cushioning device 20 may abut the first member 54 and The housing 22 can abut against the second member 56, and accordingly, the housing 22 and the piston 26 can be relatively displaced in response to the closing process, so as to provide a buffer effect to slow down the first member 54 relative to the second member 56. The force when the member 56 is closed. Regarding the principle of the buffering effect provided by the buffering device 20, reference may be made to the foregoing embodiment, and for the sake of brevity, it will not be repeated here.

As can be seen from the above embodiments, the buffer device 20 of the embodiment of the present invention includes the following features:

1. The seal 34 can have the function of sealing the shaft and the shell at the same time.

2. When the housing 22 and the piston 26 are relatively displaced, the seal 34 can be used to adjust the pressure in two areas in the chamber 42 of the housing 22.

3. The partition 36 is located between the piston 26 and the seal 34, so that the piston 26 and the seal 34 have a protective effect.

4. The groove 48 can serve as a flow path for the buffer medium.

5. The ring member 30 can be used to plug the gap 50 between the piston 26 and the inner wall W of the housing 22.

Although the present invention has been disclosed in the foregoing preferred embodiments, it is not intended to limit the present invention. Therefore, the scope of protection of the present invention is subject to the scope of the attached patent application.

Claims (19)

A buffering device includes: a housing including a containing chamber filled with a buffering medium; a piston arranged in the housing of the housing; the piston having a first side and a second side; a base A seat is mounted on the first side of the piston; a ring is arranged between the piston and the base; a piston rod is connected to the second side of the piston; and a seal is movably mounted on the piston rod. The buffer device according to claim 1, further comprising a cover body mounted on the casing. The buffer device according to claim 2, wherein the piston rod passes through the cover and partially protrudes outside the container. The buffer device according to claim 3, wherein the seal is located between the second side of the piston and the cover. The cushioning device according to claim 1, wherein the seal has a flange, and the flange is substantially close to the inner wall of the housing of the housing. The buffer device according to claim 4, further comprising a partition arranged in a container of the housing, and the partition is located between the second side of the piston and the seal. The buffer device according to claim 4, further comprising a flexible member for providing a flexible force to the sealing member. The buffer device according to claim 2, wherein an inner wall of the housing chamber of the housing has a groove, and when the housing and the piston are relatively displaced, the buffer medium can be in the housing chamber by means of the groove. flow. The cushioning device according to claim 8, wherein the ring member is made of a flexible material. The buffer device according to claim 8, wherein the buffer medium comprises a fluid. The cushioning device according to claim 8, wherein a direction in which the grooves are arranged is the same as a direction in which the housing and the piston are relatively displaced. The buffer device according to claim 8, further comprising an elastic member to provide elastic force between the housing and the piston. The cushioning device according to claim 12, wherein the elastic member is disposed in a container of the casing, and the base is abutted against the elastic member. The buffer device according to claim 12, wherein the casing further comprises an opening communicating with the accommodating chamber, and the cover is disposed at the opening adjacent to the casing. The cushioning device according to claim 1, wherein the piston and the piston rod are integrated together. A buffer device is suitable for a furniture hinge. The furniture hinge includes a first member and a second member, wherein the second member is pivotally connected to the first member, and the buffer device is installed on the first member and the second member. One of the components, the buffer device includes: a housing including a containing chamber and an opening filled with a buffering medium; a cover is installed in the housing to close the opening of the housing; A piston is arranged in the housing of the housing, the piston has a first side and a second side; a base is installed on the first side of the piston; a ring is arranged between the piston and the base; The piston rod is connected to the second side of the piston and partially extends out of the container through the cover; and a seal is movably mounted on the piston rod. The cushioning device according to claim 16, wherein the seal is sleeved on the periphery of the piston rod and located between the second side of the piston and the cover. The buffer device according to claim 17, further comprising a partition fixed in the housing of the housing, and the partition is located between the second side of the piston and the seal. The buffer device according to claim 17, further comprising a flexible member for providing a flexible force to the seal, and an elastic member for providing an elastic force between the housing and the piston.